In an examination 70% of the candidates passed in English, 80% passed in Mathematics and 10% failed in both the subjects. If 144 candidates passed in both, the total number of candidates was:
This bluish-whit metal is extremely hard and brittle, and is used almost entirely to make the very hard alloys used in fountain pen nibs, phonograph needles, and instrument pivots.
A men takes loans of Rs. 1000 at the beginning of each year at 5% per annum compound interest. Find the accumulated amount to the amount rupee , he will thus have at the end of 3 years
